Section 721.4360 - Certain hydrogen containing chlorofluorocarbons(a) Chemical substances and significant new uses subject to reporting. (1) The chemical substances ethane, 2-chloro-1,1,1-trifluoro- (CAS Number 75-88-7) and ethane, 1,2-dichloro-1,1-difluoro- (CAS Number 1649-08-7) are subject to reporting under this section for the significant new use described in paragraph (a)(2) of this section.(2) The significant new use is: Use other than as an intermediate.55 FR 35632, Aug. 31, 1990. Redesignated at 58 FR 29946, May 24, 1993, as amended at 58 FR 34204, June 23, 1993